The term "cutaneous" refers to the skin. Subcutaneous means beneath, or under, all the layers of the skin. For example, a subcutaneous cyst is under the skin.
A cyst is a closed pocket or pouch of tissue. It can be filled with air, fluid, pus, or other material.
Gawkrodger DJ, Ardern-Jones MR. Microanatomy of the skin. In: Gawkrodger DJ, Ardern-Jones MR, eds. Dermatology: An Illustrated Colour Text. 6th ed. Philadelphia, PA: Elsevier; 2017:chap 1.
Review Date: 6/28/2018
Reviewed By: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.